Cyan’s house is the first one you see. But this is obviously where I decided that people should live in houses that look like them. This isn’t always the case, especially with random minor characters, but a lot of people do live in them.

Here Cyan is getting a ray gun. He is saying “I found it” and then “ray gun”. Red is concerned, but only because he has no reason to expect Cyan to just have a ray gun lying around that can close portals between different dimensions.